2003 BMW 520 vs. 2009 Saturn Sky
To start off, 2009 Saturn Sky is newer by 6 year(s). Which means there will be less support and parts availability for 2003 BMW 520. In addition, the cost of maintenance, including insurance, on 2003 BMW 520 would be higher. At 2,171 cc (6 cylinders), 2003 BMW 520 is equipped with a bigger engine. In terms of performance, 2009 Saturn Sky (260 HP @ 5300 RPM) has 93 more horse power than 2003 BMW 520. (167 HP @ 6100 RPM) In normal driving conditions, 2009 Saturn Sky should accelerate faster than 2003 BMW 520. With that said, vehicle weight also plays an important factor in acceleration. 2003 BMW 520 weights approximately 356 kg more than 2009 Saturn Sky.
Both vehicles are rear wheel drive (RWD) - it offers better handling in dry conditions; in addition, if you are looking to drift, both vehicles do the job better than front wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Saturn Sky (353 Nm @ 2500 RPM) has 143 more torque (in Nm) than 2003 BMW 520. (210 Nm @ 3500 RPM). This means 2009 Saturn Sky will have an easier job in driving up hills or pulling heavy equipment than 2003 BMW 520. 2003 BMW 520 has automatic transmission and 2009 Saturn Sky has manual transmission. 2009 Saturn Sky will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 BMW 520 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 BMW 520 | 2009 Saturn Sky | |
| Make | BMW | Saturn |
| Model | 520 | Sky |
| Year Released | 2003 | 2009 |
| Body Type | Station Wagon | Convertible |
| Engine Position | Front | Front |
| Engine Size | 2171 cc | 1998 cc |
| Engine Cylinders | 6 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 167 HP | 260 HP |
| Engine RPM | 6100 RPM | 5300 RPM |
| Torque | 210 Nm | 353 Nm |
| Torque RPM | 3500 RPM | 2500 RPM |
| Engine Compression Ratio | 10.7:1 | 10.4:1 |
| Drive Type | Rear | Rear |
| Transmission Type | Automatic | Manual |
| Number of Seats | 5 seats | 2 seats |
| Number of Doors | 5 doors | 2 doors |
| Vehicle Weight | 1700 kg | 1344 kg |
| Vehicle Length | 4810 mm | 4100 mm |
| Vehicle Width | 1810 mm | 1820 mm |
| Vehicle Height | 1450 mm | 1280 mm |
| Wheelbase Size | 2730 mm | 2420 mm |
| Fuel Consumption | 7.7 L/100km | 8.4 L/100km |
| Fuel Consumption City | 13 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 9.7 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 70 L | 49 L |
